Ontario Geological Survey
Permanent Link to this Record:
MDI42A05NE00003
| Record Name(s) | Timmins West Mine - 2009, Croxall-Miller Property - 1979, Rusk Porcupine Claim P.8396 - 1942, Oneill Property - 1941, Thunder Creek Property - 1994, Thunder Creek Project - 2003 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Producing Mine |
| Date Created | 1983-Dec-15 |
| Date Last Modified | 2023-May-26 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper, Rare Earth Elements, Cesium
Township or Area: Bristol
Latitude: 48° 22' 31.17" Longitude: -81° 33' 28.38"
UTM Zone: 17 Easting: 458687.19 Northing: 5358167.81 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A05NE
Point Location Description: Trenches on claim P49530
Location Method: Based on Assessment
Access Description: The site is located about 20 km west of Timmins along Highway 101. Access is very easy as the main showing is less than a kilometre from Highway 101 along an old logging road. The turn off is on the south side of the highway just east of the main intersection with Highway 144.
Circa 1916 - pitting and trenching. 1941-42: Rusk Porcupine Mines Limited - 18 ddh (6500 ft), trenching. 1958: Hollinger Mines Ltd. - DD-7. 1979-1980: J. Croxall and D. Miller - ground geophysics, stripping, trenching, sampling, metallurgical testing. 1981: Preussag Canada Ltd. - ground geophysics, 11 ddh (2371 ft). 1984-85: Noranda Exploration Ltd. - airborne geophysics, mapping, trenching, stripping, geochemistry, 9 RC holes (572 ft), 3 ddh (1090 ft). 1986: Highwod Resources Ltd. -DD-4-400 m , mapping, geochemistry. 1989-90: Croxall and Mintek Resources - stripping, sampling, assays. 1994: Band-Ore Resources Ltd. - ground geophysics. 1994: Noranda Exploration - ground geophysics, DD-1-302 m. 1995: Hemlo Gold Mines Inc. - DD-7-1581 m, ground geophysics. 1996: Band-Ore Resources Ltd. - prospecting. 1996-1997: Battle Mountain Canada - DD-14-3547m, ground geophysics, mapping. 2003-2006: Lake Shore Gold Corp. - DD-25-8399 m, mapping, geochemistry, sampling, trenching. 2007-2008: Lake Shore Gold Corp. and West Timmins Mining Inc. - DD-28-13760 m. 2010-2011: Lake Shore Gold Corp. - underground drifting, bulk sampling, DD-132-42,786 m. In production. Production numbers from 2014 and 2015 are included with the Bell Creek Mine (MDI42A11SE00119).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-3908 / 2.18006 | 42A05NE0169 | 42A05NE0169 |
| T-5249 / 2.30904 | 20000000925 | 20000000925 |
| T-5371/ 2.32406 | 20000001373 | 20000001373 |
| T-5684/ 2.38109 | 20000002931 | 20000002931 |
| T-5867 | 20000014993 | 20000014993 |
| T-2378, 23 | 42A05NE8478 | 42A05NE8478 |
| T-3246, 2.16016 | 42A05NE0083 | 42A05NE0083 |
| T-2645 | 42A05SE0010 | 42A05SE0010 |
| T-1950, 2.3171 | 42A05NE8447 | 42A05NE8447 |
| T-2913, 34 | 42A05NE8428 | 42A05NE8428 |
| 2.3519, T-1950 | 42A05NE8430 | 42A05NE8430 |
| 2.3973, T-2378 | 42A06SW0206 | 42A06SW0206 |
| 2.15431, T-2913 | 42A05NE0070 | 42A05NE0070 |
| 2.16128, T-3246 | 42A05NE0084 | 42A05NE0084 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Contains |
|---|---|---|---|---|
| Peridotite | 2 | Peridotite | Carbonatized | Host |
| Mafic lava flow-unsubdivided | 3 | Massive | Near | |
| Siltstone | 4 | Near | ||
| Syenite | 5 | Contains |
Jan 21, 2013 (A Wilson) - Gold mineralization at Thunder Creek is hosted in a northeast trending, steeply northwest dipping tectonite that straddles the volcanic sedimentary contact and portions of a composite alkalic intrusion. The Rusk Shear Zone flanks a north-west plunging, quartz monzonite intrusion, called the “Porphyry Zone” and a pyroxenite body intruded along the volcanic sedimentary contact in the structural hangingwall. Due to intense alteration the Rusk Shear Zone protolith has been variably interpreted as sheared pyroxenite and/or sediment.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Sphalerite | Economic | Ore | ||||
| 3 | Galena | Economic | Ore | ||||
| 4 | Telluride | Economic | Ore | ||||
| 5 | Scheelite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| Carbonate | Alteration | Carbonatization | 1 | Strong | Massive |
Jan 21, 2013 (A Wilson) - Channel samples collected in 1941 returned assays of 0.71 oz/t Au over 4 ft, 0.43 oz/t au over 2.5 ft and 0.24 oz/t Au over 3 ft. Grab samples collected in 1979 returned values up to 1.49 oz/t Au. Total REE from a grab collected in 1979 returned 5140 ppm. Grab samples from Noranda's trenching returned assays from 0.092 to 0.178 oz/t Au. Enrichment in lanthanides and yttrium is most pronounced in altered volcanics. The source of the REE was identified as apatite where Ce2O3 ranges from 0.055% to 0.164%. Diamond drilling by Lake Shore returned assays up to 9.0 g/t Au over 0.8 m. In the Thunder Creek area mineralization occurs in two main stages: a) the Rusk Shear Zone adjacent to and in footwall or the pyroxenite unit, and b) in the Porphyry Zone which is hosted by the quartz monzonite intrusion which is present southeast of and in the immediate footwall to the Rusk Shear Zone below approximately 500m below surface. Both of these zones occur spatially related in the same steep north-northwest plunging mineralization area which has been traced over a vertical dip length to date of more than 1 km, and within which better intercepts occur along a strike length of 100 to 600 m. Mineralization in the Rusk Shear Zone comprises areas of either a) higher quartz-carbonate-pyrite vein density, and or b) areas of elevated medium to coarse-grained disseminated pyrite and associated pyrite-quartz veinlets. Both of these styles were observed to occur in the intensely foliated, often compositionally laminated carbonate-albite-quartz-magnetite portions of the shear zone. Mineralization also locally preferentially overprints pink, K-feldspar-rich syenite dykes and local plagioclase-dominant probable diorite dykes in the shear zone, with clots and aggregates of coarse pyrite, often associated with which quartz-albite-carbonate veinlets. Areas of gold mineralization occur in portions of the Rusk Shear Zone in which the shear zone matrix is variably Fe-carbonate altered. The gold mineralization occurs in two main stages: a) the Rusk Shear Zone adjacent to and footwall to the pyroxenite unit, and b) in the Porphyry Zone, an interpreted off-shoot of the Thunder Creek stock to the south. The overlap of the Rusk Shear Zone and quartz monzonite Porphyry Zone creates a mineralized corridor dominated by the relatively discrete, narrower Rusk Shear Zone from surface to 500 metre level where the broadly mineralized, elliptical shaped, quartz monzonite Porphyry Zone, thickens between the 500 to 1000 level elevation. Mineralization in the Rusk Shear Zone comprises areas of either a) higher quartz-carbonate-pyrite vein density, and / or b) areas of elevated medium to coarse-grained disseminated pyrite and associated pyrite-quartz veinlets. The gold mineralization exhibits localized sulphide replacement and iron carbonate alteration overprinting intensely foliated, compositionally banded albite-magnetite altered pyroxenite and feldspathic syenite dykelets. The Porphyry Zone mineralization is associated with sheeted sets of quartz extension veins which occur in abundance of up to several veins per metre within the intrusion. Disseminated pyrite locally occurs in the wall rock to the veins and free visible gold is locally observed in association with pyrite both in veins and wallrock immediately adjacent to veins. There is an apparent association of gold mineralization with “grey sulfides” including a bluish silvery grey mineral - a possible telluride - and by local fine grained base metal sulphides (sphalerite, galena). The occurrence of scheelite in the vein material is another good indicator of increased gold tenor.
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Timmins West | 2022 | Inferred Mineral Resource | 800000 | https://miningdataonline.com/property/9/Timmins-West-Mine.aspx | Gold 3.06 g/t | |
| Timmins West | 2022 | Measured Mineral Resource | 400000 | https://miningdataonline.com/property/9/Timmins-West-Mine.aspx | Gold 3.7 g/t | |
| Timmins West | 2022 | Proven + Probable Reserve | 5400000 | https://miningdataonline.com/property/9/Timmins-West-Mine.aspx | Gold 2.69 g/t | |
| Timmins West | 2022 | Indicated Mineral Resource | 1200000 | https://miningdataonline.com/property/9/Timmins-West-Mine.aspx | Gold 3.57 g/t | |
| Thunder Creek | 2012 | Indicated Mineral Resource | 2877000 | Crick et al 2012, p.5 | 521,600 contained ounces | Gold 5.64 Grams per Tonne |
| Thunder Creek | 2012 | Inferred Mineral Resource | 2693000 | Crick et al 2012, p.5 | 510,000 contained ounces | Gold 5.89 Grams per Tonne |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 2011 | 159790 |
Gold 20529 Ounces |
Crick et al 2012, p.41 | grade 4.0 g/t Au |
| 2010 | 2824 |
Gold 490 Ounces |
Crick et al 2012, p.41 | grade 5.4 g/t Au |
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 73 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
File - Resident Geologist files T-542, T-770
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Bristol Township, District of Cochrane, Ontario
Publication Number: M1957-07 Scale: 1:12,000 Date: 1997
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geology of the Kamiskotia Area
Publication Number: P3396 Scale: 1:50,000 Date: 2000
Author: Barrie C.T.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of Bristol Township
Publication Number: ARV66-07 Page: 33-34 Date: 1997
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian Geology, Timmins West - Bristol and Ogden Townships
Publication Number: P3436 Scale: 1:20,000 Date: 2001
Author: Vaillancourt C., Pickett C.L., Dinel E.
Publisher Name: Ontario Geological Survey
Location:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 124 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Map - Geological Compilation of the Timmins Area, Abitibi Greenstone Belt
Publication Number: P3379 Scale: 1:100,000 Date: 1998
Author: Ayer J.A., Trowell N.F.
Publisher Name:
Location:
Mono - Geology of the Kamiskotia area
Publication Number: OFR5829 Page: 70-71 Date: 1992
Author: Barrie C.T.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of the Kamiskotia Area
Publication Number: S059 Page: 54 Date: 2000
Author: Barrie C.T.
Publisher Name: Ontario Geological Survey
Location:
Compend - Summary of Field Work and Other Activities, 2000
Publication Number: OFR6032 Page: 4.1-4.11 Date: 2000
Author: Ayer J.A., Baker C.L., Kelly R.I., Parker J.R., Stott G.M., Thurston P.C.
Publisher Name: Ontario Geological Survey
Location:
Publication - A technical review and report of the Thunder Creek Property, 135p.
Publication Number: Date: 2009
Author: D.H.R. Powers
Publisher Name:
Location: Timmins RGO
Publication - 43-101 Technical Report – Preliminary Economic Assessment and updated mineral resource assessment for Timmins West Mine, 493 p.
Publication Number: NI 43-101 rpt Date: 2012
Author: D. Crick, R. Koch, R. Kusins, D. Powers, D. Buss
Publisher Name:
Location: Timmins RGO
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